Expression for time in terms of G(universal gravitional constant), h (Planck constant) and c (speed of light) is proportional to :

Question

$\sqrt {{{h{c^5}} \over G}} $

$\sqrt {{{{c^3}} \over {Gh}}} $

$\sqrt {{{Gh} \over {{c^5}}}} $

$\sqrt {{{Gh} \over {{c^3}}}} $

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